leake



` n. C. LEAKE. ELEcmoMAGNEnc DEVICE.' APPLICATION Fl-LED WAR; 28. |916.

Patented Oct. 28, 1919..`

4 aliens-SHEET l y BY Arm/mfr R. C. LEAKE.

ELECTROMAGNETIC DEVICE. APPLICATION FILED MAR. 2s. :91s,

, 1,320,247'. Patented Oct. 28,1919.

, 4 SHEETS-SHEET 2.

' Afrik/vn n. c'. LEAKE.

ELCIROMAGNETIC DEVICE. Arrucmou min mm. 2s. 191s.

1,320,247.l o l vPatented Oct. 28,1919.

4 SHEETS-SHEET 4,4.

FIG. 5.

- l fwn/ron v I j 90,?? X; ATTORNEY* 'y UNTTED sTATEs PATENT oEEIoE.

RICHARD o. LEAxE, or EoCHEs'rEE, NEW YoEK, AssIGNoE To GENERALRAILWAY-a.,

SIGNAL COMPANY, oE GATES, NEW YoEK, A coEPoEATIoN or NEW YoEx.

ELECTECMAGNETIC DEVICE.

Specication of Letters Patent. (Patented 001;, 28, 1919,

Application mea Maren 2s, 191e. serial No. 87,191.

To all whom z't may concern Be it known that I, RICHARD C. LEAKE, acitizen of the United States, and a residentI of the city of Rochester,in the county of Monroe and State of New York, have invented a new anduseful Electromagnetic Device, of which the following is a speci-,

y to so construct a relay that a definite and relatively prolongedperiod will elapse after its energization or denergization before thecircuits controlled thereby are altered from opened to closed or viceversa.

A further object of the invention is to lso construct a relay of thetype specified,

that the circuits controlled thereby will after the lapse of thedefinite and relatively prolonged period be quickly opened or closed.

Other objects and advantages will appear as the description of theinvention progresses, and the novel features of the invention will bepointed out in the appended claims.

In describing the invention in detail, reference is had to theaccompanying drawings, wherein like characters of reference designatecorresponding parts throughout the several views and in which:

Figure 1 is a front elevational view, showing the denergized position ofa relayfembodying the invention with the front cover removed and certainparts broken away to more 'clearly show the construction; Fig. 2 is alsoa front elevational view but shows the parts in their energizedposition, the parts broken away in Fig. 1 being shown in Fig. 2 in full;Fi 3 is a partial vertical section taken on t e-line 3-3 of Fig. 1,

' viewed in the direction of arrow a; Fig. 4

is a vertical section taken on the. line 4-4 of Fig. 3 viewed in thedirection of arrow b; Fig. 5 is a vertical section taken on the line 5 5ofFig. 3, viewed in the direction of the arrow 0,' Fig. 6 is a sectionalplan view taken substantially on the line 6-6 of Fig. 3 viewed in thedirectionof arrow d.

The relay consists generally of a casingI A, circuit controllingmechanism B and a motor C. 1

The casing A consists generally of two parts, best shown in Fig. 3, amain body ortion 2 and a cover-4. The cover 4 is i rmly attached to thecasing 2 in any Well known and approved manner as by screws, which mayIpass through the cover 4. and into threaded holes 6, best shown inFig. 1. Between'the main body 2 and the cover 4 1s placed a gasket 7which renders the joint watertight. The cover 4 is formed with a largeopening in which is placed a 'ane of glass 8 lso that the lmechanism witin the casings may be readily inspected from without. The glass 8 isheld in position by pins 9 and clips 10 best vshown in Fig. 3. Since themotor lforms Lno part of this mvention', it is not shown in detail andit may be of any suitable or vsell known construction and4 is arrangedto rotate shaft 11 in one direction when it is set in operation. Themotor is preferably mounted in protecting casing C.

Referring t'o Fig. 3, a shaft 11 driven by the motor has a collar 12fastened thereto by means of a pin 13 best shown in Fig.. 6. Mountedlooselyl on shaft 11 is a sleeve 14 on which are fixed a pinion 15 and aratchet wheel 16. Between the collar 12 and the sleeve 14 is a Ifiberwasher 17 and at the opposite -end -of sleeve 14 isan'other.fber washer18, and bearing against washer 18 is another washer 191 into which isloosely pressed one end of a sleeve 19. Encircling sleeve 19 is aspring, one end of which bears against the enlarged portion of sleeve 19and the other end against washer 191, which spring presses sleeve 14against collar 12, making it difficult for the pinion 15 and theratchetwheel 16 to move independently of the shaft 11 but avoiding unnecessaryshocks to the motor for the reason that when the mechanism'reaches thelimits of its movement and is abruptly stopped, the motor vis allowedto'come to a gradual stop due to the slipping of the motor shaft 11 inits clutch. Mounted on the sleeve 14, but -free to turn thereon, is anescapement wheel 21. Bearing on the teeth of the ratchet wheel 16 arepawls 22 which are pivotally fastened to the escapement wheel 21 bymeans of pins 23 and which have their outward movement limited by stoppin 67 fixed in the escapement wheel 21. On one side of the case 2 bestshown in Fig. 3 is a lug 24 having a bushing 25, screw threaded therein,which forms one' bearing for shaft 26, and the other bearing for saidshaft is formed in like manner in a lug 27 on the opposite end of casing2 best shown 1n Fig. 5. Mounted on the shaft 26 'and adapted to rockthereon is a pallet*l support 28, one arm of which has a U shaped end281 and supports the' pallet 30 by means of pivot pin.31 and thebearings 32 and 33 which 'are screw threaded in the U shaped end 281 ofthe pallet support 28. Each end of the pallet 30 best shown in Figs. 1,2 and 5, is weighted and on its lower edge are two teeth 301 and 302which are adapted to engage with the teeth 211 of the escapement wheel21 and c ooperate therewith vin a manner which w11l be hereinafter morefully descrlbed.

' A counterwei'ght 34 is fixed to the shaft 26 and has,'on itsperiphery, teeth 341 whlch mesh with teeth on apinion 35, the shaft 36for which is mounted 1n the bearmgs 37 and 38 which are screw threadedin lugs 39 and 40 respectively formed integral with the casing 2, bestshown in Fig. 3.-

Fixed in and projecting from both sides of the counterweight 34 is a pin44, best shown in Fig. 3. One end of pin 44 moves in the slot 451 of alink 45 andthe other end .strikes the arm 282 of the pallet support 28and lifts'l the pallet 30 out of engagement with the teethy 211 of theescapement wheel V21 after the counterweight has moved up to a certainpoint, which will be hereinafter more fully explained. The pallet 30 islunited in its upward movement by -plns 46 which are mounted in thecasings 2 and are lbest shown in Fig. 5.

' The pallet support 28 is spring pressed downwardly by 'a spring 47which bears against the vertical armsy 283 and 28A1 of the palletsupport 28, thegmovement of saidarms being limited by the head 481 ofthe stop bolt 48. It will be readily seen by referring to Figs. 1, 4 and5 that if the stop bolt 48 is adjusted either` in or out, that thepallet 30 will be correspondingly raised or l-owered in its relation tothe teeth 211 of the escapement wheel 21 and when the pallet 30 has beenonce adjusted to its proper position, the stop bolt 48 may be locked byscrewing down the j-am nut 49 againstthe lug 50 of the Casin 2.

On the left hand side of Fig. 1 is a stop arm 52 which is mountedloosely on a bearing stud 51, supported by the lugs 24 and 27 of thecasing 2. Referring to Figs. 1 and 4 it will be seen that at the lowerend of stop arm 52 is a projecting portion 521 lthat bears against -asideof the counterweight 34 and acts as a stop therefor. The adjustingscrew 53, screw threaded in the lug 54 of the casing4 2 Abears againstthe stop arm 52 and it 'may readily be seen, by referring to Figs.

v land 4, that adjusting the screw 53 in or by the stop arm has been*adjusted the screw 53 may be locked in position by screwing down the jamnut 55 against lug 54. As a result of the raising or lowering of thecounterweight 34, it will be seen by referring to Fig. 4 that the pin 44will be brought either nearer to or farther away from the arm 282 of thepallet support 28, and will also be correspondingly raised or lowered inthe slot 451 of the link 45, and in this way the timing of the opening4and closino' of the contacts is accomplished, as will hereinafter morefully explained.

To facilitate theI adjustment of the timing parts, al scale may bemarked on the counterweight 34 in any convenient manner and a pointer toregister with said scale may also be conveniently placed as for exampleon bearing screw 37, thus it will be apparent that after the calibrationhad n once made on a relay, changes in adjustment could be rapidly made.

Referring to Fig. l, contact carrier 56 is mounted on the pin 57 whichis secured in a lug 58 of the casing 2. The said contact carrier 56 hason its left hand side a counterweight 561, which tends to rock it to theleft, on its pin 57 thus -causing the contact lingers 59, which areinsulatingly ixedrto the contact carrier 56, to be moved to the left andl lat their upper ends to coperate with insulated contacts 61 of bindingposts 62 which are securely mounted in the top of casing 2. Y

vThe link 45 is loosely fastened at one end of the contact carrier 56 by.pin 63 and having at its other end a. slot 451, adapted to move freelyon the pin 44 for part of the movement of the counterweight 34 and to belifted by the pin 44 of the counterweight 34 for the balance of itsmovement. thus it will be seen by referring to Fig. 2 that the contactcarrier 56 will be rocked on pin 57 and `the contact fingers 59 willbreak contact with contacts 61 and will make contact with insulatedcontacts 64 of the binding posts 65 which are also securely insulatinglymounted in the topof casing 2. The upward movement of the` Contactcarrier 56 is limited 66 of-'the casing 2. In the top of the Casin A isan adjustable stop pin or screw 68 which limits the u'pward movement ofthe counterweight 34.

Fig. 1 shows the parts in the denergized condition of the relay, the-palletsupport 28 being vproperly adjusted in relation to the teeth 211on the escapement -wheel 21 by means of adjusting screw 48, and the stoplarm 52 beino' adjusted to bring pin 44 in the proper re ation to arm282 of pallet support 28, to consume a lpredetermined length of time inits travel.

If energy is applied to the motor it will turn the shaft 1l in thedirection of the arrow :v Fig.,1. The pinion 15 and the ratchet 16,being frictionally mounted on the motor shaft 11 will turn with it, thepinion transmitting motion through the intermediate gears 41, 42 and 43respectively to the pinion 35 which in turn meshes with the teeth on thecounterweight 34, causing it to be raised; and since the teeth on the.ratchet wheel 16 engage the pawls 22, the escapement wheel 21 is turnedin the direction of the arrow The teeth 211 on the esc-apement wheel 21are equally spaced. one side being radial and the other side having aninclined face and constructed so as to ride on the teeth 301 and 302 ofthe pallet 30, so that as the escapement wheel 21 turns in the directionof the arrow X, the pallet 30 will be rocked on its pivot pin 31 and theteeth 301 and 302 will be positively moved in and out of engagement withthe teeth 211 of the escapement wheel 21. In general the escapement issimilar to any well known type. It will be readily seen by referring toAFig. 1 that as each tooth has to lift alternately both sides of thepallet 30 out of engagement witlrthe teeth 211 of the escapement wheel21. a certain amount of work has to be done and the rotation of themechanism is to that extent retarded.

After the counterweight 34 has been raised by the rotation of the motor,through the medium of the gears, before mentioned, to a certain point,by referring to Fig. 4 it will be seen that the rearwardly projectingend of the pin 44 on count-erweight 34 will strike the arm 282 of thepallet support 23 and the continued movement of the counterweight willlift the pallet 30 out of engagement with the teeth 211 of theescapement. wheel 21 and allow the motor and gear train to complete themovement of counterweight 34 to its nal position in Contact withadjustable stop 68 unimpeded by the pallet 30.

lVhen the counterweight 34 is raised, the forwardly projecting end ofthe pin 44 will move freely in the slot 451 of the link 45 i until pin44 engages the top of slot 451 which occurs j ust previous to the timepallet 30 is raised after which it will lift link 45 and rock contactcarrier 56 on its pivot pin 5T and the contact lingers 59 will breakcontacts 61 and make Contact with contarts 64, as shown in Fig. 2. Itwill be noted that the fast completion of the movement` not only assuresa. quick break and make of the contacts, but also reduces the sparkingbetween the contacts and thus avoids pitting of the contacts.

Assuming that the relay is in the energized position, as shown in Fig;2, and that energy is removed an initial kick will be given to thecounterweight 34 by the-spring 47 whichbears against the pallet support28, an arm of which coacts with pin 44 of the counterweight 34, thus itwill be apparent that any tendency of the counterweight to `stick upwill be overcome. The counterweight 84 will continue to fall by its ownweight until itreaches the stop arm 52, and during this movement willrotate pinion/35 in the reverse direction and through the intermediategears, the motor will be rotated in the direction of the arrow y.Although the escapementfwheel 21 is prevented from moving in the reversedirection with the motor shaft 11 because of the engagement of theradial side of atooth 211 on the escapement wheel 21 with the outer edgeof a tooth 301 of the pallet 30, the ratchet wheel 16 and pawls 22,however, permit the motor shaft 11 to' rotate in the reverse directionindependently of the escapement wheel 21. As the pawls 22 are forcedoutward by the ratchet wheel 16 moving in the reverse direction, theiroutward movement is limited by stop pins 67 on the escapement wheel 21;

Spring 47 also returns the pallet support 28 to its norm-il position,thereby bringing teeth 301 and 302 of the pallet 30 into engagement withteeth 211 of the escapement wheel 21, and 'further acts as a means tosteady the pallet in its normal position.

It will be seen by referring to Fig. 2, that pin 44 will move freely inthe slot 451 of the link 45, as the counterweight 34 moves downwardly,.ind by the act-ion of the counterweight 561, contact. carrier 56 willbe rocked on its pivot pin 57 toward the left hand so that contactfingers 59 will break contact with contacts 64 and will again makecontact in a like manner quickly with contacts 61., thus completing acycle of movements of the relay.

While I have shown and described a relay that is slow acting when it isenergized, it is apparent that, by a simple rearrangement or reversal ofparts, which will in no way alter the functions or mode of operation,the relay may be changed into one that will be slow acting whendenergized.

Although I have particularly described the construction of one physicalembodiment of myinvention and explained the operation and principlethereof; nevertheless,I desire to have it understood that the formselected is merely illustrative, but does not exhaust the possiblephysical embodiments of the idea of means underlying my invention.

What I claim as new and desire to secure by Letters Patent of the UnitedStates, is :v

1. vIn a time element relay, in combination: a movable member, circuitcontrolling means operated by said member near one eX- treme of itsmovement, a motor for operating said member, an escapement wheel drivensimultaneously with the movement of said member in one direction, apallet adapted to coperate with the escapement wheel, and meanscontrolled by said member -mined point near the above mentioned eX-treme of the movement of said member.,

2. In a time element relay of the type in which a movable circuitcontrolling element is automatically actuated from its normal positionafter a predetermined interval'of time following a change in theenergization of the relay, the combination with the circuit controllingelement, of a counter- Weighted lmember acting at one eXtreme of itsmovement to actuate said element, a motor and associated gearing forraising said counterweighted member,- time controlled mechanismeffective to regulate the rate of movement of said Vmember in onedirection, and meansl depending upon the movement of said member forrendering said time controlled mechanism inactive at a predeterminedposition near one eXtreme of the movement of said member in saiddirection, whereby the timing action automatically ceases when thecounterweighted member nearly attains its extreme position so as topermit quick operation of the circuit controlling element.

3. In a time element relay of the type in which a movable circuitcontrolling element is automatically actuated from its normal positionafter a predetermined interval of time following a change in theenergization of the relay, the combination with a rocking andcounterweighted contact carrier constituting the circuit controllingelement,.of a movable member biased to one eXtreme position and actingat its other extreme position to move said contact carrier in opositionto its bias, adjustable means for determining the biased eXtremeposition of said member, electro-responsive means for operating saidmember in opposition to its bias and time controlled mechanismoperatively connected to said member for regulating the rate ofmovementthereof from its biased posit-ion to its other eXtreme position.

4. In a time element relay, in Combination: a movable memlber, circuitcontrolling means operated thereby, a motor' for opera ing said member,an escapement wheel driven in accordance with the movement of saidmember in one direction, a pallet adapted to coperate with theescapement Wheel, said pallet being movable into and out of engagementwith the escapement wheel, and means controlled by the member for movingand holding the pallet out of engagement with the escapement Wheelduring the latter part of the range of movementrof said memlber in saiddirection.

`5. In a time element relay of the type in which a movable circuitcontrolling element .is automatically actuated from its normal positionafter a predetermined interval of time following a change in theenergization of the relay, the combination with a biased contact carrierconstituting the circuit controlling element, of a movable member biasedin one direction, a lost motion device adapted to operatively connectsaid contact carrier and said member at one eXtreme position-of thelatter, a motor and associated gearing for moving said member inopposition to its bias, and time controlled mechanism driven by saidmember for regulating the rate of movement thereof toward said eXtremeposition. Y

6. In a time element relay, in combination: a counteriveighted mem'bersupported to move vertically, circuit controlling means operated by saidmember, a motor for operating said member, an escapement Wheeloperatively connected to said member upon movement thereof in onedirection, a pallet adapted to coperate with said escapement Wheel, saidpallet being movable into and out of engagement With said escapementwheel, and means acting at a predetermined point in the movement of saidmember for moving said pallet out of engagement with the escapementWheel.

7. In a relay, in combination: a circuit closing means; a motor foroperating said circuit closing means; a shaftoperated by said motor; apinion and a ratchet wheel operated by said shaft; an escapement wheelloosely mounted on said shaft; pawls attached to said escapement Wheeland adapted to engage Withsaid ratchet Wheel and drive said escapementWheel in one direction; a pallet for governing said escapement wheel;a'support for said pallet; and means governed -by the motor to operatesaid support after part of the movement of said motor to disengage saidpallet from said escapement wheel.

8. In aI time element relay of the type in lwhich a movable circuitcontrolling element 1s automatically actuated from its normal p ositionafter a predeterminedfinterval of time following a change in theenergization of the relay, the combination with a contact carrier biasedto one position and constituting the circuit controlling element; of acounterweighted member mounted to oscillate on a horizontal axis; means.constituting an operating connection between said contact carrier andsaid member for causing said member, upon attaining one extremeposition, to move said carrier in opposition to its bias; a motor andassociated gearing for raising said counterweighted member; and timecontrolled means forregulating the ratev of movement of said membertoward said extreme position, said time controlled means beingautomatically rendered inactive by said'member after part of themovement thereof.

9. In a time element relay of the type in which a movable circuitcontrolling element is automatically actuated from its normalposition'after a predetermined interval of time following a change inthe energization of the relay, the combination with a counter- Weightedcontact carrier constituting the circuit controlling element, of acounterweighted sector-gear mounted to oscilla-te on a horizontal axisand adapted upon attaining one extreme position to move-said carrier inopposition to its bias, a motor and associated gearing-connected to saidsector-gear, adjustable means for determining the biased eXtremeposition of said sector-gear, and timing means for regulating the rateof movement of said sector-gear toward its eX- treme position, saidtiming means being automatically rendered inactive by said sectorgearafter part of the movement thereof.

10. In a relay, in combination: a circuit closingmeans; aI shaft foroperating said means;y a motor foroperating said shaft; an escapementwheel operatively connected with said shaft when said shaft is rotatingin one direction; a pallet having Weighted arms; a movable palletsupport; a spring to press said pallet down into engagement with saidescapement Wheel; and an adjustable Stop to limit the downward movementof v said pallet.

tion: a counter-Weighted member supported to move vertically, circuitcontrolling means operated by said member, a' motor, gearing includingan escapement wheel and a pavvl and ratchet mechanism Jfor operativelyconnecting the motor and said member, a pallet adapted to cooperateWiththe -escapement Wheel,a support for said pallet, means for adjustingthe range of movement of the pallet support, land means controlled bysaid member for operating said support. 1,13. In a time element relay,in combination: circuit controlling means biased to one position, amotor for operating said means in opposition to its bias, gearingincluding an escapement Wheel and a pawl and ratchet mechanism foroperatively connecting the motor and said circuit controlling means, a

pallet adapted to cooperate with the escapement Wheel, a movable supportfor the pallet which is spring-pressed to move the pallet intoengagement with the teeth of the escapement Wheel, and means controlledby said gearing for operating said pallet suport.

p 14. In a time element relay, in combination: circuit controlling meansbiasedl to one position, a motor and associated gearing for operatingthe' circuit controllingmeans in opposition to its bias, time controlledmechanism for regulating the rate of movement of the motor and gearing,and means for rendering said mechanism inactive after a predeterminedportion of the movement of the motor and its associated gearing.

15. yIn a time element relay, in' combination: a movable member biasedto one position, circuit controlling means operated by the member, meansfor adjusting the range of. movement of said member,.a motor foroperating said member in opposition to its bias, time controlledmechanism for controlling the rate of movement of said member in onedirection, and means controlled by said member for rendering the control.of said mechanism ineffective at a predetermined point near one extremein the range oi' movement of said member.

16. In a time element relay, in combination: a movable member biased toone eX- treme of its range of movement, aI motor and associated gearingfor driving` the member to the other extreme, means for adjusting therange of movement of said member,

. time controlled mechanism eii'ective for part of the movement of themember for regulating the rate of movement thereof in one direction, andcircuit controlling means operated by the 'member at one extreme of itsmovement.

17. In a time element relay, in combination: a movable member, means foradjustingthe range or" movement of said member, timing mechanismeffective to regulate the rate of movement of said member in onedirection from `its adjusted position to a predetermined point near theopposite extreme, and circuit controlling means operated by said membernear said extreme of its movement in said direction. l

18. In a time element relay, in combination: circuitcontrolling meansbiasedto one position, a counter-weighted member supported to movevertically and adapted to operate the circuit controlling means near oneeXtreme of thel movement of said member, a. motor for operating themember in opposition .to its bias, and time controlled'y mechanism forregulating the rate of movement of said member and automaticallycontrolled by said member to be effective for only part of the movementthereof toward said extreme.

19. In a time element relay,l in combination: a counterweightedsector-gear mountof the contact carrier in opposition to its bias onlyWhen the sector nearly attains one extreme position, and time controlledmechanism actuated by said sector-gear for regulating its movementtoward said extreme position.

20. In a time element relay of the type in which there is an adjustabletime interval between a change in the energization of the relay and theoperation of its circuit controlling element from its normal position,the 'con'ibination with the circuit controlling element, of acounterweighted member adapted to actuate said element at one eX- tremeposition, and adjustable means for determining the other extremeposition of said member, said means comprising an'arm pivotallysupported at one end and having its Vother end positioned to act as astop for the counterweighted member, together with an adjusting screwengaging said arm between its ends.

21. In a relay, in combination: a circuit controller biased to onecircuit controlling position and adapted to be operated to anotherposition; a counterweighted member supported to move vertically from oneeX- treme position to another extreme position; adjustable means fordetermining the initial position of said member; a motor forl operatingsaid member; timing mechanism for governing the rate of movement of saidmember in one direction, said mechanism comprising an escapement Wheeland a pallet having Weighted arms; a movable support for said pallet;means for adjusting said support to vary the extent of movement of saidpallet; a lost motion device operatively connecting said circuitcontroller and said member; and means associated with said movablemember for lifting said pallet out of engagement With said escapementwheel at a predetermined point in the movement of said member.

22. In a time element relay, in combination: a counterweightedmembersupported to move vertically; a motor for driving said member; a.circuit controller biased to one position and adapted to be operated toanother position by said member near one eX- treme of its movement; alost motion device connecting -said circuit controller and said member;adjustable means for determining the initial position of said member; atiming mechanism for governing the rate of movement of said member inone direction, said mechanism comprising an escapement Wheel andapallet, said pallet being movable bodily into and Aout of engagementwith said escapement Wheel; and means controlled by said movable memberfor moving said pallet out of engagement with said escapement Wheel at apredetermined point in the range of movement of said member.

23, In a time element relay, in combination: a circuitcontrollercomprising a counterweighted contact carrier; acounterweighted gear sector supported to move vertically; a motor andgearing for operating said sector; a lost motion device operativelyconnecting said sector and said contact carrier; timing mechanismoperated 1n accordance with the movement of said sector for controllingthe rate of movement thereof, in one direction, said mechanismcomprising an escapement wheel, .a pallet,

and a movable support for said pallet; and means actuated by saidsectorfor moving said support to lift, the pallet out of engagement with theescapement Wheel at a predetermined point in the movement of said sectornear its upper extreme. A

24. In a time element relay, in combination; a circuit controller; meansfor operating said circuit controller from one extreme position toanother; timing mechanism for governing the rate of movement of saidoperating means, said mechanism comprising an escapement wheel and apallet; and means for throwing said pallet out of engagement With saidescapement Wheel at a predetermined point in the range of move# mentof'said operating means.

25. In a time element relay, in combination: a circuit controller biasedto one position and adapted to be operated to another position;operating means for said circuit controller including a counterweightedmember supported to move vertically; timing mechanism for governing therate of movement of said operating means, said mecha-` nism comprisingan escapement Wheel and a pallet; means for adjusting said palletrelatively to said escapement Wheel; and means operated by saidcounterweighted member for throwing said pallet out of engagement withsaid escapement Wheel at a predetermined point in the movement of saidcounterweighted member near its upper extreme.

26. In a time element relay, in combination: a contact carrier biased toone circuit controllingposition and adapted to be operated to anotherposition; ay counter- Weighted gear sector supported to move vertically;a lost motion device operatively connecting said contact carrier andsaidsector; a motor and associated gearing for driving said gear sector;an escapement wheel; a paWl and .ratchet mechanism for operativelyvconnecting said` escapement Wheel and gear sector; a pallet adapted tocoperate with said escapement wheel; a movable support for said pallet;means for adjusting sald .support to vary the ,relative distance betweenthe axial centers of said pallet and said Wheel; means controlled bysaid gear sector for moving said support to lift said pallet out of engaement with said escapement wheel after t e gear seclili tor has moved toa predetermined extent from its initial position; and adjustable meansfor determining the extent of ftravel of said gear sector from itsinitial position to the point where said'support is moved. 27. In arelay, Athe combination with a timing mechanism comprising an escapementwheel, a weighted pallet, and a movable support for said pallet adaptedto be adjusted to vary the distance between the axial centers of saidescapement wheel and said pallet, of means controlled by said mechanismfor moving said support to lift said pallet out of engagement with saidescapement wheel.

'28. In a time element relay, in combination: a circuit controllerbiased to one-circuit controlling position and adapted to'be operated toanother position.; a. pivotally mounted counterweighted member;adjustable means for determining one eXtreme position of said member; alost motion device operatively connecting said circuit controller andsaid member; a motor; gearing operatively connecting said motor and saidmember; an escapement wheel; means for operatively connecting saidescapement wheel and said member whenv the latter moves in one directionand for disconnecting said parts for movement in the opposite direction;a pallet associated with said escapement wheel; a movable support forsaid pallet; and means acting at a predetermined point in the movementof said member for moving said support to lift said pallet out ofengagement with the escapement wheel.

29. A timing mechanism for relays comprising an escapement wheel and apallet, said pallet being mounted on a movable support which may beadjusted to vary the relative distance between the axial centers of saidescapement wheel and said pallet and which may be operated to move thepallet bodily out of engagement with said escapement wheel', and meansgoverned by said timing mechanism for operating said e pallet support.

30. In a time element relay, in combination: a movable member biased toone eX- treme of its range of movement, a motor and associated gearingfor driving the member to the other eXtreme, means for adjusting therange of movement of said member,

time controlled mechanism for regulating the rate of movement of saidmember in one direction, a biased circuit controller, and meanscomprising a slotted link and pin for operatively connecting saidcircuit controller and said member -near one extreme of the movement ofsaid member to cause movement of said circuit controller in oppositionto its bias.

31. In a time element tion: a counterweighted member supported to movevertically; a motor for driving said member; a circuit controller biasedto one relay, in `combinaposition and adapted to be operated to anotherposition by said member near one extreme of its movement; a lost motiondevice connecting said circuit controller and said member; adjustablemeans for determining the initial position of said member; and Aa timingmechanism for governing the rate of movement of said member in onedirection.

32. In a time element relay, the combination with a circuit controllerincluding a biased contactcarrier, of operating means thereforcomprising a pivotally mounted i counterweighted member, a motor andgearing for raising said counterweighted member, adjustable means fordetermining the biased eXtreme position of said member, means adapted toestablish an operative cnnection between the Contact carrier and saidcounterweighted member near the upper eX- treme position of the latter,and timing mechanism including an escapement wheel and a palletadjustable relatively to each other for regulating the rate of' upwardmovement of said counterweighted member.

33. In a time element relay, in combinationra contact carrier biased toone circuit controlling position and adapted to be operated to anotherposition; a countervveighted gear sector supported to move vertically; alost motion device operatively connecting said contact carrier and saidsector; a mo-

